It is running smoothly when driven, on idle however the rev counter goes up and down few rpm, as the engine makes whooo whooo whooo, idle is not that smooth compared to before rebuild, not sure yet why this is.

Feels a bid stiff but that is most likely how it should be for new engine.

I do think that it is on the lean side, as EGT's is not getting higher than 410deg C 3rd gear flat out 3000rpm uphill, level road so far 5th 120km/hr 350-360deg C EGT.